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Generalized parton distributions of $\Delta$ resonance in a diquark spectator approach

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arxiv 2305.02680 v1 pith:NZ5DSUD2 submitted 2023-05-04 hep-ph

Dongyan Fu , Bao-Dong Sun , Yubing Dong This is my paper
classification hep-ph
keywords gpdsapproachdeltadiquarkdistributionsfunctionsgeneralizedlattice
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abstract

The generalized parton distributions (GPDs) for the spin-3/2 $\Delta^+$ resonance are studied numerically by using a diquark spectator approach. Our results show that symmetric constraints from time reversal on GPDs are satisfied. The axial vector form factors of the system are also provided and compared with the lattice QCD calculation. Furthermore, the structure functions are obtained from GPDs in the forward limit. The evolution of structure functions to the scales up to 4 GeV are carried out as predictions for the possible lattice QCD calculations.

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  1. Mechanical properties of the $\Omega^-$ baryon from gravitational form factors

    hep-ph 2025-07 conditional novelty 5.0 of 10

    Using QCD sum rules, the authors extract seven gravitational form factors of the Omega baryon and derive its internal energy, angular momentum, pressure, shear, radii, and D-terms.

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